Improvement in fawning-mills



RUNK & THARR Grain winnower. No.101,514. Patented April 5.1870.

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JACOB L. RUNK AND BENJAMIN H. THARP, OF NASHVILLE, ILLINOIS.

Letters Patent No. 101,514, dated April 5, 1870.

IMPROVEMENT IN PANNING-MILLS.

The Sehednle referred to in these Letters Patent and making part of thesame.

useful Improvement in Fanning -Mills; and we do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to make andnse the same, referencebeing had to the accompanying drawings forming part of thisspecification.

This invention relates to improvements in fanning mills, and consists inthe construction and arrangement of parts, as hereinafter specified.

The figure represents a longitudinal sectional elcvation of our improvedfanning-mill.

A represents the inclined sides of the hopper, be-

i tween the lower edge of which is the throat B.

O isthe adjusting-slide or gate for regulating the opening of the throaIt is arranged on the top of the upper sieve-shoe, and provided withslide-bars D, in one of which adjusting-screw E is arranged for movingit either wa. The said screw is provided with a hand-crank, F, forturning it. This arrangement of the gate on the shoe facilitates thedelivery of the grain, in consequence of the motion imparted to it bythe shoe.

G is the agitating-rod, bent at the ends to form vertical legs, wherebyit is connected to the slide 0, so as to be supported above the throatin the hopper for agitating the grain, straw, and c-hafi' by the motionit derives from the movement of the slide 0, which works back and forthby the movement of the sieveshoe, which is eflected by the rock-shaft H,arm- I, and connecting-rod K.

The arrangement for grading the grain consists of the two long finalsieves L M, and the tilting valve N.

The sieve L is made large in the meshes, to retain only the largestgrains, which are delivered out of the machine at 0, while the grainsdropped through the meshes'iall on the sieve M, made shorter than L todeliver through P to the space Q below, or, when the valve N is turnedinto the position represented in dotted lines, the grain will also bedelivered outside the case, and mix with that from the sieve L.

R R are bolts passing through the sides of the case, and secured byscrew-nuts on their inner ends.

8 s are notched metal plates, screwed to the under side of the sieve M,and forming the bearing-surfiices of said sieve on bolts It. Thus thesieve will be shaken vertically as it is reciprocated.

Having thus described our invention,

We claim as new and desire-to secure by Letters Patent- 1. The rod G,slide 0, and bar D, in combination with the shoe, so as to besimultaneously operated, as set forth.

2. The arrangement of the notched plates 5 on the sieve M, and thescrew-bolts R, adjustable in slots in the case, as set forth and shown.

3. The arrangement of the valve N in connection with the long sieve Land short sieve M, so as to deliver hoth the coarse and fine grainoutside the case, or one or ,hoth of them beneath the mill, as shown anddescribed.

J. L. RUNK.

Witnesses: B. H. THARP.

ISAAC MILLER, JAMES TALBIRT.

